package com.adamjwh.pratice.offer;

import com.adamjwh.tools.TreeNode;

/**
 * 操作给定的二叉树，将其变换为源二叉树的镜像。
 */
public class MirrorTree {
    public void Mirror(TreeNode root) {
        if(root == null) {
            return;
        }

        if(root.left == null && root.right == null) {
            return;
        }

        TreeNode temp = root.right;
        root.right = root.left;
        root.left = temp;

        if(root.left != null) {
            Mirror(root.left);
        }

        if(root.right != null) {
            Mirror(root.right);
        }
    }
}
